Giphy - add Markdown format

Enable to paste the GIF directly in a GitHub comment or anywhere else that requires a Markdown syntax

คุณจะต้องติดตั้งส่วนขยาย เช่น Tampermonkey, Greasemonkey หรือ Violentmonkey เพื่อติดตั้งสคริปต์นี้

คุณจะต้องติดตั้งส่วนขยาย เช่น Tampermonkey หรือ Violentmonkey เพื่อติดตั้งสคริปต์นี้

คุณจะต้องติดตั้งส่วนขยาย เช่น Tampermonkey หรือ Violentmonkey เพื่อติดตั้งสคริปต์นี้

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Giphy - add Markdown format
// @namespace    http://splintor.wordpress.com/
// @version      0.3
// @description  Enable to paste the GIF directly in a GitHub comment or anywhere else that requires a Markdown syntax
// @author       [email protected]
// @updateUrl    https://gist.github.com/splintor/d17771cf706a5d874222651577be7e8a/raw
// @match        https://giphy.com/*
// ==/UserScript==

(function() {
  'use strict';
  const __markdownTagId = '__markdownTag'
  function addMarkdownTag() {
    const existing = document.getElementById(__markdownTagId);
    const gifLink = Array.from(document.querySelectorAll('input')).find(i => i.value.endsWith('giphy.gif'));
    if (!gifLink) {
      if (existing) {
        existing.remove();
      }
      return;
    }

    if (existing) return;

    let gifLinkParent = gifLink.parentNode;
    if (gifLinkParent.firstChild === gifLink) {
      gifLinkParent = gifLinkParent.parentNode;
    }
    const markdownTag = gifLinkParent.cloneNode(true);
    markdownTag.id = __markdownTagId;
    markdownTag.firstChild.innerText = 'Markdown Tag';
    let labelElement = markdownTag.lastChild.firstChild;
    if (labelElement.tagName === 'INPUT') {
      labelElement = markdownTag.lastChild.lastChild.firstChild;
    }
    labelElement.innerText = 'A Markdown tag to be used in sites like GitHub';
    const input = markdownTag.querySelector('input');
    input.value = `![image](${input.value})`;
    input.addEventListener('focus', e => e.target.select());
    gifLinkParent.after(markdownTag);
  }

  setInterval(addMarkdownTag, 500);
  addMarkdownTag();
})();